6.1.6 - Common TCP and UDP Ports

Flashcards for well-known and registered port numbers, transport protocols, and services/applications.

What service or application uses port 22 with TCP transport protocol?

File Transfer Protocol— Control

What service or application uses port 20 with TCP transport protocol?

File Transfer Protocol— Data

What service or application uses port 21 with TCP transport protocol?

Secure Shell/FTP over SSH

What service or application uses port 23 with TCP transport protocol?

Telnet

What service or application uses port 25 with TCP transport protocol?

Simple Mail Transfer Protocol

What service or application uses port 53 with TCP/UDP transport protocol?

Domain Name System

What service or application uses port 67 with UDP transport protocol?

BOOTP/DHCP Server

What service or application uses port 68 with UDP transport protocol?

BOOTP/DHCP Client

What service or application uses port 69 with UDP transport protocol?

Trivial File Transfer Protocol

What service or application uses port 80 with TCP transport protocol?

HTTP

What service or application uses port 110 with TCP transport protocol?

Post Office Protocol

What service or application uses port 123 with UDP transport protocol?

Network Time Protocol/Simple NTP

What service or application uses port 143 with TCP transport protocol?

Internet Message Access Protocol

What service or application uses port 161 with UDP transport protocol?

Simple Network Management Protocol

What service or application uses port 162 with UDP transport protocol?

Simple Network Management Protocol Trap

What service or application uses port 389 with TCP/UDP transport protocol?

Lightweight Directory Access Protocol

What service or application uses port 443 with TCP transport protocol?

HTTP-Secure (Secure Sockets Layer (SSL)/Transport Layer Security (TLS)

What service or application uses port 445 with TCP transport protocol?

Server Message Block over TCP/IP

What service or application uses port 514 with UDP transport protocol?

Syslog

What service or application uses port 546 with UDP transport protocol?

DHCPv6 Client

What service or application uses port 547 with TCP transport protocol?

DHCPv6 Server

What service or application uses port 587 with TCP transport protocol?

SMTP-Secure

What service or application uses port 636 with TCP transport protocol?

LDAP-Secure

What service or application uses port 993 with TCP transport protocol?

IMAP-Secure

What service or application uses port 995 with TCP transport protocol?

POP3-Secure

What service or application uses port 1433 with TCP transport protocol?

MS Structured Query Language (SQL) Server

What service or application uses port 1521 with TCP transport protocol?

Oracle SQL*Net

What service or application uses port 3306 with TCP transport protocol?

MySQL/MariaDB

What service or application uses port 3389 with TCP transport protocol?

Remote Desktop Protocol

What service or application uses port 5004 with UDP transport protocol?

Real-Time Protocol

What service or application uses port 5005 with UDP transport protocol?

Real-Time Control Protocol

What service or application uses port 5060 with TCP/UDP transport protocol?

Session Initiation Protocol

What service or application uses port 5061 with TCP/UDP transport protocol?

SIP-Secure